Mobile Network Stateless Communication Using Tokens for Unstable Links
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Solution Overview
Problem
Existing 3GPP communication systems face challenges in managing unstable connections and inefficient state management during wireless transmit/receive unit (WTRU) registration, leading to issues such as increased bit error rates and limited transmission power due to low battery conditions.
Innovation Solution
The implementation of stateless communication (SC) between the WTRU and the Access and Mobility Management Function (AMF) using a communication token (CT) to facilitate stable data transmission, even in unstable conditions, through mechanisms like quick user datagram protocol (UDP) internet connections (QUIC) and Service Based interfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional registration-based communication is used, then connection stability is improved, but system complexity and registration overhead increase
Solution Approach 1:
The patent extracts the essential authentication mechanism from the complex registration process. Instead of requiring full registration with the AMF for every communication session, the system uses a simplified token-based approach where the WTRU obtains a communication token during initial registration and can then communicate directly with the CMF without repeated registration, thereby reducing complexity while maintaining security
Solution Approach 2:
The communication token acts as an intermediary credential between the WTRU and the network. This token mediates the authentication process by allowing the WTRU to prove its identity and authorization status without undergoing full registration procedures each time, thus simplifying the interaction while ensuring connection stability
2Reliability
If stateful registration management is used, then authentication security is improved, but communication efficiency and responsiveness deteriorate
Solution Approach 1:
The system performs authentication and authorization actions in advance during the initial registration process. The AMF issues a communication token to the WTRU that pre-establishes the WTRU's authorized status. This preliminary authentication allows subsequent communications to proceed efficiently without repeating the full authentication sequence, thereby improving productivity while maintaining security through the pre-validated token
Solution Approach 2:
The patent changes the state management parameter from persistent stateful registration to token-based stateless communication. The communication token encapsulates the necessary authentication state information, allowing the system to transition from maintaining continuous stateful registration records to using discrete, self-contained tokens that provide both security and efficiency
3Reliability
If connection stability monitoring is increased, then communication reliability is improved, but energy consumption and processing overhead increase
Solution Approach 1:
The WTRU autonomously monitors its own connection status and makes decisions about communication based on local conditions. The device self-evaluates whether to proceed with communication or wait for better conditions without requiring continuous network intervention or complex centralized monitoring, thereby reducing processing energy consumption while maintaining reliable communication through local intelligence
Data Source
AI summary
A wireless transmit/receive unit (WTRU) transmits, to an Access and Mobility Management Function (AMF) in a network, a registration request including information indicating that a communication with the network is requested. In an example, the communication may be stateless communication (SC). The WTRU receives, from the AMF, a registration accept message including a communication token (CT). In an example, the CT may be granted by a communication management function (CMF). Additionally or alternatively, the CMF may be a stateless CMF (SCMF). Additionally or alternatively, the CT may be a stateless CT (SCT). Further, the WTRU determines to transmit data to the network. The WTRU determines that a connection between the WTRU and the network is unstable. The WTRU transmits a communication request message to the network, including the CT. The WTRU receives a communication response from the network. Additionally or alternatively, the communication response includes a confirmation of data transmission.